<template>
  <div class="login-container">
    <el-form ref="loginFormRef" class="login-form" :model="loginForm" :rules="loginRules">
      <div class="title-container">
        <h3 class="title">用户登录</h3>
      </div>
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon="user"></svg-icon>
        </span>
        <el-input v-model="loginForm.username" placeholder="请输入用户名" name="username" type="text" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon="password"></svg-icon>
        </span>
        <el-input
          v-model="loginForm.password"
          placeholder="请输入密码"
          name="password"
          :type="passwordType"
          @keyup.enter="handleLogin"
        />
        <span class="show-pwd">
          <svg-icon :icon="passwordType === 'password' ? 'eye' : 'eye-open'" @click="onChangePwdType" />
        </span>
      </el-form-item>

      <el-button type="primary" style="width: 100%" :loading="loading" @click="handleLogin">登录</el-button>
    </el-form>
  </div>
</template>

<script lang="ts" setup>
import { useUserStore } from '@/stores/user'
import { ElFormInstance } from '@/type'
import { ElMessage } from 'element-plus'

const loginForm = ref({
  username: '',
  password: ''
})

const loginRules = ref({
  username: [
    {
      required: true,
      trigger: 'blur',
      message: '用户名为必填项'
    }
  ],
  password: [
    {
      required: true,
      trigger: 'blur',
      message: '密码为必填项'
    }
  ]
})

const passwordType = ref('password')
const onChangePwdType = () => {
  if (passwordType.value === 'password') {
    passwordType.value = 'text'
  } else {
    passwordType.value = 'password'
  }
}
const user = useUserStore()
const router = useRouter()
const loading = ref(false)
const loginFormRef = ref<ElFormInstance | null>(null)
const handleLogin = () => {
  loginFormRef.value?.validate(valid => {
    if (!valid) return
    loading.value = true
    user
      .loginAndFetch(loginForm.value)
      .then(() => {
        ElMessage.success('登录成功')
        loading.value = false
        router.push('/')
      })
      .catch(() => {
        loading.value = false
      })
  })
}
</script>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
$cursor: #fff;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    :deep(.el-form-item) {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }

    :deep(.el-input) {
      display: inline-block;
      height: 47px;
      width: 85%;

      input {
        background: transparent;
        border: 0px;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        width: 400px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;
        box-shadow: none;
      }
    }
    :deep(.el-input__wrapper) {
      box-shadow: none;
      display: inline-block;
      padding: 0;
      background-color: transparent;
    }
  }

  .tips {
    font-size: 16px;
    line-height: 28px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    display: inline-block;
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    :deep(.lang-select) {
      position: absolute;
      top: 4px;
      right: 0;
      background-color: white;
      font-size: 22px;
      padding: 4px;
      border-radius: 4px;
      cursor: pointer;
    }
  }
}
</style>
